Patch 8.2.2389
Problem:    Test failure on a few systems.
Solution:   Avoid that "char" value is negative.
Files:      src/vim9compile.c, src/vim9execute.c, src/vim9.h


*** ../vim-8.2.2388/src/vim9compile.c   2021-01-21 20:21:24.240670466 +0100
--- src/vim9compile.c   2021-01-21 22:51:00.019353529 +0100
***************
*** 826,832 ****
      if ((isn = generate_instr(cctx, ISN_CHECKTYPE)) == NULL)
        return FAIL;
      isn->isn_arg.type.ct_type = alloc_type(expected);
!     isn->isn_arg.type.ct_off = offset;
      isn->isn_arg.type.ct_arg_idx = argidx;
  
      // type becomes expected
--- 826,834 ----
      if ((isn = generate_instr(cctx, ISN_CHECKTYPE)) == NULL)
        return FAIL;
      isn->isn_arg.type.ct_type = alloc_type(expected);
!     // Use the negated offset so that it's always positive.  Some systems 
don't
!     // support negative numbers for "char".
!     isn->isn_arg.type.ct_off = (char)-offset;
      isn->isn_arg.type.ct_arg_idx = argidx;
  
      // type becomes expected
*** ../vim-8.2.2388/src/vim9execute.c   2021-01-21 20:21:24.244670457 +0100
--- src/vim9execute.c   2021-01-21 22:50:11.995525764 +0100
***************
*** 3240,3246 ****
                {
                    checktype_T *ct = &iptr->isn_arg.type;
  
!                   tv = STACK_TV_BOT(ct->ct_off);
                    SOURCING_LNUM = iptr->isn_lnum;
                    if (check_typval_type(ct->ct_type, tv, ct->ct_arg_idx)
                                                                       == FAIL)
--- 3240,3246 ----
                {
                    checktype_T *ct = &iptr->isn_arg.type;
  
!                   tv = STACK_TV_BOT(-(int)ct->ct_off);
                    SOURCING_LNUM = iptr->isn_lnum;
                    if (check_typval_type(ct->ct_type, tv, ct->ct_arg_idx)
                                                                       == FAIL)
***************
*** 4242,4252 ****
                      if (ct->ct_arg_idx == 0)
                          smsg("%4d CHECKTYPE %s stack[%d]", current,
                                          type_name(ct->ct_type, &tofree),
!                                         (int)ct->ct_off);
                      else
                          smsg("%4d CHECKTYPE %s stack[%d] arg %d", current,
                                          type_name(ct->ct_type, &tofree),
!                                         (int)ct->ct_off,
                                          (int)ct->ct_arg_idx);
                      vim_free(tofree);
                      break;
--- 4242,4252 ----
                      if (ct->ct_arg_idx == 0)
                          smsg("%4d CHECKTYPE %s stack[%d]", current,
                                          type_name(ct->ct_type, &tofree),
!                                         -(int)ct->ct_off);
                      else
                          smsg("%4d CHECKTYPE %s stack[%d] arg %d", current,
                                          type_name(ct->ct_type, &tofree),
!                                         -(int)ct->ct_off,
                                          (int)ct->ct_arg_idx);
                      vim_free(tofree);
                      break;
*** ../vim-8.2.2388/src/vim9.h  2021-01-21 20:21:24.240670466 +0100
--- src/vim9.h  2021-01-21 22:50:33.903447037 +0100
***************
*** 224,230 ****
  // arguments to ISN_CHECKTYPE
  typedef struct {
      type_T    *ct_type;
!     char      ct_off;         // offset in stack, -1 is bottom
      char      ct_arg_idx;     // argument index or zero
  } checktype_T;
  
--- 224,230 ----
  // arguments to ISN_CHECKTYPE
  typedef struct {
      type_T    *ct_type;
!     char      ct_off;         // offset in stack (positive), 1 is bottom
      char      ct_arg_idx;     // argument index or zero
  } checktype_T;
  
*** ../vim-8.2.2388/src/version.c       2021-01-21 21:42:09.409150461 +0100
--- src/version.c       2021-01-21 22:53:13.186881998 +0100
***************
*** 752,753 ****
--- 752,755 ----
  {   /* Add new patch number below this line */
+ /**/
+     2389,
  /**/

-- 
panic("Foooooooood fight!");
        -- In the kernel source aha1542.c, after detecting a bad segment list

 /// Bram Moolenaar -- [email protected] -- http://www.Moolenaar.net   \\\
///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\  an exciting new programming language -- http://www.Zimbu.org        ///
 \\\            help me help AIDS victims -- http://ICCF-Holland.org    ///

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